Sluice-gate for weirs



55: 1932- F. DUWE 1,847,933

SLUICE GATE FOR WEIRS Filed June 5, 1929 5 Sheets-Sheet 1 Fig.1

lnvenior:

March 1, 1932.. F. DUWE smmm GATE FOR wnms Filed June :5, 1929 5 Sheets-Sheet 2 14 m In l enlor:

- March 1, 1932. F. DUWE SLUICE GATE FOR WEIRS Filed June 3, 1929 5 Sheets-Sheet 3 March 1, 1932. F. DUWE SLUICE GATE FOR WEIRS 5 Sheets-Sheet 4 Filed June 5, 1929 in van for:

March 1, 1932. uw

SLUICE GATE FOR WEIRS 5 Sheets-Sheet 5 Filed June 3, 1929 In V6)? 202*: m2; 0%

Fig.9 I

Patented Mar. 1, 19 32 terminate sw et n n adman) masonrirnnraimik anesiivne; "I fllvt'rimiaimen. or. NIIBEMBERGfGERlVlANY, noonrommron ORGE MANY fermion-earn roamin Application mar ne 3,1929, "straits 368, 0'31, and in Gem-imam 8,1928, 7

My invention relates to weirs and more particularly to weirs equipped withasluice gate adapted'to beraised and -1oweredv by means of racks and provided with anice- 1:5 guard adapted- :to loe raised and lowered prior to the lifting ofthe sluice-gate; in

common "the racks are conneotdwit'h the ice- 1 guard by means oafla lever mechanism per-mit ting the racks daring adjnstrnentof said ice guard to ireely ln'rove along the body-ofthe sluice-gate. 1 so that-the sluice gate ,wirllabe lifted by the racks only after a-catch provided at the lowerend-of thera-c'ks engages fixed stops on thesl-uice gate. I Y

The present invetionnowhas for its object a novel construction of sluice gates per nitti-ng theirn-tobe raised and lowered prior to the raising and lowering ot-the ice-guard and to be heldin a more orle'ss inclined in'-. go termediate position. r '1 Th-"s object I attain by providing in addi; tion to said catch locking bolts made displace able bym'eans of push-rods movable along said racks to lock the latter with the "sluice- 2 5 gate in any desired position oftheice-guarda In the accompanying drawings in; which 7 I have shown various embodiments involving the invention, Fig; 1 isaside jview 'ofa'niassembled roller sluice-gate providedwithloe'k ing means for the racks; Figs. 2 and 3 are detail views showing on a somewhat largerscale the looking bolts in a position to 100k the racks when theioe-guard is raised Fig. 4 is a detail view showing on a stilllarger sealethe arrangement of the locking bolts; Figs; 15

' and'6' are further detail-views showing hookshaped bolts for. keeping the racksin -fixed position when" the ice-guard is lowered Fig; 'Z is a side-view ofa sluice-gate comprising several superposed locking bolts, for the pur= pose of securing the racks in various interme diat e positionsof theioesguard; Figs; 8- and 9 y are views of a further modifioation in which the racks maybe secured in-"variouspoisitions of the ice-guard bymeans of lockingfbolts in the shape of supporting levers mounted V on the sluice-gate nd adapted to Co-operate with the teeth ofthe racks:

'According to :liigs. 1-.4 the'j'pivoted ices 5 guard im -yj be er cte'd'in Qweried posi 'levers' 15: 16 mounted upon one of diet tion of the' s luice-gate :2 by a further lowersluice-gate 2. Theselinks tenthe one hand engage with the levers ,4 and on *th e other' 1 hand with cranks 6 mounted earnest-anti the ice-guard, saidshaft being constructed" to :resist torsional strains. Attheiounder ends of the acks?) there are provided catches 7 which during the raising of the racks 3 and after the lowering of the ice-guard '1 abiits against fixed stops Son the sluioe-gate caus ing the latter to positively move in I upward direction during the further raising of the raoks'3, Iii-order to permit the sluice-gate 2't0 be raised when the ice-guard 1 'is -ra'ised,th e' racks 3 are equipped on the side" with tracks,

n which locking bans 9 are displaceably at;

ran-gedunderneath the stops 8*01'1 the sluice.

gate. 'Fig;j4 shows more particularlygho'wthese locking bolts9 may be properlyfset by means. of a two-arm" lever 10 carried by a shaft ll'whichjis mounted in the saidtraoks -by,means of members 12'fprovided interm'ee' diate said tracks. A forked lever 14 is p'iv oted'toa crank 13"sec'ured to saidshaft ll, the other end Of said lever, asshownlio'r in stance'in- Fig; 3; being pivoted to a'systern 0 f racks of the M0113 and extending around the other rack; Another rack 17' pivoted to said lever system 15, 16;.is'g11'ided by rack 3' topermit relative mov ment'in vertical direction: The rack '17, a's Fig." lshows, meshesfwith'a-ipiiij ion s whichi equipp'e'dfwith a crank-handle lgmQunted p n the pp r'enfd of mantles. If it is desired to raise the sluice-gate in the raised po ition'of the ice-guard 1, the racks 17 which-are guided bythe racks 3am lowered by means of thecrank-handle 19 in] the lowered positionof saidl'racks 3-. -Thrby the looking'bolts 9 by means of'the levers and links 10-16jare moved so as to project; into the path of the'fixed' stops 8on-the sluice gate 2 and the latter together with theraised ice-eguard'l may now be raisedby-theraoks 3.

. In the modification shown in Figs! 5" and 6;

arm levers having arms of even length and loosely mounted upon a shaft 22 carried by the tracks of the'rack 3. The downwardly V directed arms of these levers 21 are obliquely recessed so as to form in position of rest an acute angle 23, (Fig. 5) whiletheupper arms have a .gap 24 therebetween. A Wedge 25 with its'edge downwardly directed projects into said gap 24, said wedgebeing secured by means of bolts 32 on a slide-rod 31 guided on the outside ofone of thetracks of the racks 3 and guided also on another rack on the other track; The bolt 32 more particularly is guided tracks 33 provided. on the rack To the free end of the rack 30 which is guided by the rack 3 and to the free end of the slide-rod 31 extending in the position of rest of the hook-shaped levers 21, a little below said hooks there is secured a second wedge 34 by means of'bolts 35 which are guided by tracks 36 on the rack .3. The edge of the wedge 34 projects upwards into the angle 23 formed by the obliquely recessed levers 21. I

In this arrangement, the levers 21'remain at rest when the sluice-gate 2 is raised in the erected position of the ice-guard. The said levers, however, will disappear intermediate the tracks on the racks 3 so that the latter may be raised 'when'the ice-guard l'is erected until the catches 7 abut againstthe fixed stops 8 on the sluice-gate. I I If, however, during the raising of the sluice-gate the ice-guard 1 shalilremainin the lowered position, the pull exerted upon the rack 30 will cause the wedge 34 at the under end of said rack to move in upward direction, in which case the oblique surfaces of said wedge 34 will exert apressure upon the oblique surfaces of the levers 21 so that the latter will be spread apart, thus bringing them into the path of the stops-8 provided-on the sluice-gate 2. During the raising of the racks 3, therefore, the sluice-gate will at once be positively raised together with said racks. After the lowering of the sluice-gate, the levers 21 are returned to their initial position by a downward motion of the racks 30, the upper wedge 25 in this case being introduced into the gap 24 intermediate. said levers 21 after the lower wedge 34 has been moved to some extent away from said levers.

- Byreason of the spreading action exerted by the wedge 25, the hooks 21 will be rocked inwardly so that the sluice-gate will be disengaged 'therefrom.

The modification shown in Fig. 'Twill not only permit the raisingof the sluice-gateHn a common rack 41 guided intermediate the tracks on the racks 3 as well as by means of a link 42 which engages directly with the cranks of the operating members for said locking bolts. The ice-guard 1 in the present case is connected with the rack 3 by means of a link 43'engaging therewith, a bell-crank 44 pivotally connected with said link 43 and mounted onthesluice-gate 2 and a 'further link 45 leading from'said bell-crank 44 to the crank 6 of the shaft for operating the ice-guard 1, in a manner to permit the same to be raised while the rack 3 is in its lowermost position;

If it is'desired to lower the ice-guard 1 before the sluice-gate 2'is raised, the levers 3740 are left atrest so that during the raising of the rack 3 the catch 7 will cause upward motion of thesluice-gate2 by means of the stops 8 after the lowering of the ice-guard 1.

On the other hand, if it is desired to retain the ice-guard prior to the raising of the sluicegate in partly raised position, as for instance in a position which corresponds to about one fourth. of the total rocking motionof the iceguard,the racks '3 are only lifted to such an extent that the lowermost locking bolt 37 comes into position underneath the stops 8 on the sluice-gate. The ice-guard then will be lowered through an angle corresponding to about threequarters of its rocking motion; Now, when the'rack 41 is moved the bolts 3740 will be moved forward so that the lowermost bolt 37 'will engage the stops 8,

whilethe locking bolts 3840 will be positioned within recesses46'48 provided in the sluice-gate. The sluice-gate may now be lifted upon a further raising of the rack 3.

In like manner, the racks 3 are lifted to a proper extent before the bolts 37 40 are unlocked, if the ice-guard 1 shall remain in halfraised or in about three quarter raised position. a In such case the bolts 38 and 39 will be moved into the range of action of the stops 8; thus causing either the bolts 39 and 40 or only the bolt 40 to engage withthe recesses 46, 47

or 46', respectively. By immediately unlocking the bolts before the raising of the rack 3. the sluice-gate may also be raised when the ice-guard 1 is in fully raised position.

According to Figs. 8 and 9 the locking between the sluice-gate and the racks 3 is accomplished by means of locking bolts 49 having the form of supporting levers pivotally mounted by means of the shaft 50 on the side ofthe sluice-gate to oo-operate with the teeth 51 of the racks 3. By this construction of the'locking bolts 'it'will be possibleto ad just, prior to the lifting of the sluice-gate,

Toe

' 61 and 62 are other levers 63 and 64 which atlases if I l the ice-guard 1 in the same manner as shown in Fig. 5 by means of alink 20 pivoted to' 58 is pivoted at its two'endsto the levers 59 and 56, respectively, which levers are mount-,

ed on shafts 61 and 62 in the tracks of the racks 3. w i

The length of the slot 57 is so dimensioned that during the raising and lowering ofthe ice-guard 1 the connectingrod 58 may slide 7 upon the bolt 56.- Mounted upon. the shafts are in engagement with the rod mechanism for operating the locking' device, which mechanism consists of the rack 65 and the connecting rod 66.-

When the sluice-gate Qis' raised with the ice-guard 1 in raisedpositiomthe supporting lever 49 will remain at rest. 7 If it is de- 7 sired, however, to lower the ice-guard 1 prior to the raising of the sluice-gate, the rod mechanism 65 and 66 is actuated in the low ered position of the rack 3. Consequently of this, the levers 63 and 64 as well as 59 and 60 will rock'outwards and cause a displacement of the connecting rod 58 so that-the latter will move from the right-hand position shown in Fig. Stoward the left so that the parallelogram of levers 53', 55 and'52 which ispositively moved by means of the bolt 56 will rock'the supporting lever 49 into the broken-line position in which it willengage with the uppermost tooth 51 of the rack 3 which tooth is positioned in the path of saidsupporting lever 59. If now the racks 3 are raised, the sluice-gate likewise will be raised together with the ice-guard in. lowered position. z f

In order to retain the ice-guard 1 in an intermediate position, the racks 3 before ac-v tuation of the rodmechanism 65 and 66 need to be raised only to such an extent that a definitetooth 51 of the rack will engage with the supporting lever 49 subsequent to the outward rocking motion of the latter.

The last-described arrangement has spe-.

cial advantages, inasmuch as only one rod mechanism 65, 66 will ,be required for the operation of the supporting levers which co-operate with both racks of the sluicegate; 50 which carries thesupporting leversor bolts 49 may be made to extend all over the width of the sluice-gate, thus permitting retraction of said locking bolts. 7 In {a weir, ;a' verticallymovable= sluice I This is due to the fact that the shaft- 9 positive motion-ta be transmitted from vone to the other side of the 'sli'i'ice gate. i

flhe invention may of course,- be embodied in other modificationsdifi'erent from those shown and describedtherein and;therefore, I do not' limit myselfto the disclosure made in this specifi'cation and the drawings, 7

' claim; o

1. In a weir, a-vertically inovahle sluice gate, fan ice-'g uardiimounted on said sluice gate for movement;toraisedand lowered positions relative thereto, vertically mo'vable racks for raisingand I lowering the-sluice gate, said raclis being "v =,rti :a1 1y movable relative to the: sluice gate, connections; between 1 said racks Sand -said ice-guard wherebywert ieal movement of theracl'zs,relative to'the sluice-gate 'eli ects raisin and lowering of I stops carried by'; the sluice gate, looking'bolts carried-j *by the racks; for projectionto engage said stops upon upward movement oithe racks to caus'e-t'he sluice gate I to be lifted with theracks,;andimeansmount:

ed on the racks 'for effecting projection and gate, an -ice' guard mounted on" sai'difslui'ce gate" formov ement to raised and loweredi-po i sitions "relative thereto, vertically movable racks-for raising and low'eri'ng the sluice gate, said racksgbem g vertically movable relative to the-sluice gate,{ connections between said racks and'said" icegu'ard whereby vertical moyeme'nt of"theracks 'relative to :the sluice gate eiile'cts ra'ising and lowering of the flicje guard; locking-elements carried racks and iflre sluice gate, respectively, fo Leo-1 gate to tlre racks; for upward movementby the rammed means-carried by the racks for operating-the locking-elementscarriedzthere by to and'frompositions fo'r cooperation-with gage, I e

3. Ina weir, a'vertically movable sluice gate, an ice-guard mounted on said sluice operationwith' eachother anode the sluice the-locking" elementse carried by "the sluice a gate for movement to raised and lowered positions relative thereto, vertically movable racks for raising and lowering the sluice gate, said racks being vertically movable relative to the sluice; gate, connections between I said racks and said ice-guard whereby vertical movement of the racks relative to the sluice gate effects raising and lowering of the ice-guard, locking elementscarried by the racks and the sluice gate, respectively, for

cooperation with each other tolock the sluice gate to the racks for upward movement by the latter in differentvertical positions of the racks relative to the sluice gate, whereby the sluice gate may be raised withthe iceguard disposed in different positions of adjustment relative thereto, and means carried by the racks for efi'ecting relative operation of the locking elements to anol'from cooperating positions. 7 t

4. In a weir, a vertically movable sluice gate, an ice-guard mounted on said sluice gate for movement to raised and lowered po-, sitions relative thereto, vertically movable racks for raising and lowering the sluice gate, said racks being vertically movable relative to the sluice gate, connections between said racks and said ice-guard whereby vertical movement of the racks relative to-the sluice gate elfects raising and lowering of the ice-guard, a plurality ofvertically spaced locking elements carried-by the racks, cooperating. locking elements carried by the sluice gate to lock the sluice gate to the racks for upward movement by the latter in different vertical positions of the racks relative to the sluice gate, whereby the sluice gate may be raised with the ice-guard disposed indifferent positions of adjustment relative thereto, and means carried by the racks for effecting relative operation of the locking elements to and from cooperating. positions. a

5. In a weir, a vertically movable sluice gate, an ice-guardmounted on said sluice gate for movement to raised and lowered positions relative thereto, vertically movable racks for raising and lowering the sluice gate, said racks being vertically movable relative to the sluice gate, connections between said racks and said ice-guard whereby vertical movement of the racks relative to the sluice gate effects raising and lowering of the iceguard, lockingelementscarried by the racks and the sluice gate, respectively, for cooperation with each other tojlock the sluice gate to the racks for upward movement by the latter, and means carried by the racks for effecting relative operation of said locking elements to and from cooperating positions.

In testimony'whereof I afiiX' my signature.

' FRIEDRICH DUWE. 

